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Geochronological Reconsiderations for the Eastern European Key Loess Section at Stayky in Ukraine : Volume 9, Issue 3 (22/05/2013)

By Kadereit, A.

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Book Id: WPLBN0003982318
Format Type: PDF Article :
File Size: Pages 31
Reproduction Date: 2015

Title: Geochronological Reconsiderations for the Eastern European Key Loess Section at Stayky in Ukraine : Volume 9, Issue 3 (22/05/2013)  
Author: Kadereit, A.
Volume: Vol. 9, Issue 3
Language: English
Subject: Science, Climate, Past
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Wagner, G. A., & Kadereit, A. (2013). Geochronological Reconsiderations for the Eastern European Key Loess Section at Stayky in Ukraine : Volume 9, Issue 3 (22/05/2013). Retrieved from http://www.ebooklibrary.org/


Description
Description: Heidelberger Lumineszenzlabor, Geographisches Institut, Universität Heidelberg, Im Neuenheimer Feld 348, 69120 Heidelberg, Germany. Event-stratigraphical correlations between local/regional terrestrial sedimentary archives and marine or ice-core records providing the global climate history and time-scale are highly desirable for a deeper understanding of the effects of global climate change on a local/regional (palaeo-)environment. However, such correlations are not trivial, as the terrestrial records tend to be floating and fragmentary and usually show varying sedimentation rates. Therefore, a reliable chronometric framework is a necessary prerequisite for any event-stratigraphy involving terrestrial archives. In this respect, the age-model underlying the event-stratigraphical approach for the Eastern European key loess section at Stayky in Ukraine appears to need revision. Here we explain, why it is highly unlikely that the Middle Pleniglacial Vytachiv Soil developed during Greenland interstadial (GIS) 8, and why the embryonic soils in the upper part of the Upper Pleniglacial part of the loess section most likely post-date Heinrich 2 event. As a consequence, the revised age-model challenges the earlier suggested correlation of the suite of incipient soils above the Vytachiv Soil with Greenland Interstadials, which was supposed to start with GIS7 but for which matching from after GIS5 seems more likely. The revised chronology suggests that the transition from Middle to Upper Pleniglacial environmental conditions at the Eastern European key section occurred during the final phase of marine isotope stage (MIS) 3. Thus, the picture appears to be in accordance with that of the Western European key section at Nussloch in Germany pointing to a common driver of palaeo-environmental change in both regions, such as early Late Glacial Maximum (LGM) advances of the Arctic ice-shield or changes of the North Atlantic circulation and sea-ice distribution leading also to relevant changes of the palaeowind field.

Summary
Geochronological reconsiderations for the Eastern European key loess section at Stayky in Ukraine

Excerpt
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